Guest Editorial: Introduction to the Special Section.

The article presents information on the International Conference on Software Maintenance held in Bari, Italy which was sponsored by the IEEE Computer Society Technical Council on Software Engineering in 1997. The program for this conference addressed important maintenance issues, such as the year 2000 problem and preparing for the transition to network computing through paper presentations, industry reports panel discussions, tools demonstration and keynote addresses. The first paper under the title "Identifying Modules via Concept Analysis," by Michael Siff and Thomas Reps, presents a technique that addresses an important problem in reengineering and restructuring legacy code that is identifying modules. The second paper under the title "Measuring and Evaluating Maintenance Process Using Reliability, Risk and Test Metrics," by Norman F. Schneidewind, presents a measurement model that addresses an important problem in software maintenance measurement, measuring the stability of the maintenance process.